4d Systems Amazing 3.5" Display Module powered by a PIC32 PICadillo-35T Picadillo-35T Fiche De Données
Codes de produits
Picadillo-35T
4D SYSTEMS PICadillo-35T Display Module
© 2014 4D SYSTEMS Page 10 of 31 www.4dsystems.com.au
I = Input, O = Output, P = Power, A = Analog Input
J3 Jumper Pinout (Central)
Pin
Symbol
Chip Pin
I/O
Description
1
+3.3V
-
P
When the Jumper is placed between Pin1 and Pin2, the backlight
will be forced on 100%, and not controllable by software
will be forced on 100%, and not controllable by software
2
BACKLITE
-
-
This pin is connected to the backlight circuitry
3
RD2
77
I/O
When the Jumper is placed between Pin2 and Pin3, the backlight
will be connected to RD2 which is PWM capable, so the backlight
can be dimmed with software. RD2 is still connected to P3 Pin 3,
so be weary of this.
will be connected to RD2 which is PWM capable, so the backlight
can be dimmed with software. RD2 is still connected to P3 Pin 3,
so be weary of this.
J4 Jumper Pinout (Central)
Pin
Symbol
Description
1
RESET
Both of these pads are connected to RESET. In the rare case that the Auto-Reset
function is not required, which is where RESET is pulled low from the DTR signal of the
FTDI USB to UART converter chip when programming takes place, the small track
between the 2 pads of this header can be cut.
If this function is wanted to be restored, a header could be carefully soldered in place,
or a jumper wire placed between the pads to enable Auto-Reset once again.
Please note, this is an unpopulated header.
function is not required, which is where RESET is pulled low from the DTR signal of the
FTDI USB to UART converter chip when programming takes place, the small track
between the 2 pads of this header can be cut.
If this function is wanted to be restored, a header could be carefully soldered in place,
or a jumper wire placed between the pads to enable Auto-Reset once again.
Please note, this is an unpopulated header.
2
RESET
As above.
Backlight ON
2
1
3
Backlight PWM Controllable
Bridge to restore Auto-Reset
2
1